int red=13;
int green=12;
int button=11;
int buttonstate=0;
void setup() {
  // put your setup code here, to run once:
pinMode(red,OUTPUT);
pinMode(green,OUTPUT);
pinMode(button, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
buttonstate=digitalRead(button);
if(buttonstate==1)
{
  digitalWrite(red,HIGH);
  digitalWrite(green,HIGH);
}
else if(buttonstate==0)
{
  digitalWrite(red, LOW);
  digitalWrite(green,LOW);
}
}